:root {
    --royal-blue: #4169E1;
    --royal-blue-dark: #3154b4;
    --royal-blue-light: #6b8cff;
    --dark: #333;
    --light: #f4f4f4;
    --danger: #dc3545;
    --success: #28a745;
    --warning: #ffc107;
    --info: #17a2b8;
    --white: #ffffff;
    --gray: #6c757d;
    --border-color: #dee2e6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--light);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--royal-blue);
}

.nav-brand i {
    font-size: 2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--royal-blue);
    color: var(--white);
}

.btn-register {
    background-color: var(--royal-blue);
    color: var(--white) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--dark);
    margin: 2px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--royal-blue), var(--royal-blue-dark));
    color: var(--white);
    padding: 80px 20px;
    text-align: center;
    border-radius: 10px;
    margin: 40px 0;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* Buttons */
.btn-primary {
    background-color: var(--royal-blue);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--royal-blue-dark);
}

.btn-secondary {
    background-color: var(--gray);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-icon {
    background: none;
    border: none;
    color: var(--royal-blue);
    cursor: pointer;
    padding: 5px;
    margin: 0 5px;
    font-size: 1.2rem;
}

.btn-icon.delete {
    color: var(--danger);
}

/* Features Section */
.features {
    padding: 60px 0;
}

.features h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 3rem;
    color: var(--royal-blue);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
}

/* Stats Section */
.stats {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    margin: 40px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--royal-blue);
    margin-bottom: 10px;
}

.stat-label {
    color: var(--gray);
    font-size: 1rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 40px 0;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--dark);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.data-table {
    width: 100%;
    background-color: var(--white);
    border-collapse: collapse;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.data-table thead {
    background-color: var(--royal-blue);
    color: var(--white);
}

.data-table th,
.data-table td {
    padding: 15px;
    text-align: left;
}

.data-table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

.data-table tbody tr:hover {
    background-color: rgba(65, 105, 225, 0.05);
}

.data-table .amount {
    font-weight: bold;
    color: var(--royal-blue);
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.category-card {
    background-color: var(--white);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-3px);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.category-card h3 {
    color: var(--dark);
    margin-bottom: 5px;
}

.category-card p {
    color: var(--gray);
    font-size: 0.9rem;
}

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background-color: rgba(65, 105, 225, 0.1);
    color: var(--royal-blue);
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
}

/* Forms */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--royal-blue), var(--royal-blue-dark));
}

.auth-box {
    background-color: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: 30px;
}

.auth-header i {
    font-size: 3rem;
    color: var(--royal-blue);
    margin-bottom: 10px;
}

.auth-header h1 {
    color: var(--dark);
    margin-bottom: 5px;
}

.auth-header p {
    color: var(--gray);
}

.auth-form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--royal-blue);
}

.form-group small {
    display: block;
    color: var(--gray);
    font-size: 0.85rem;
    margin-top: 5px;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.auth-footer a {
    color: var(--royal-blue);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert.info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 50px auto;
    padding: 20px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h2 {
    color: var(--dark);
}

.close {
    color: var(--gray);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--dark);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* Subscription */
.subscription-status {
    margin: 40px 0;
}

.status-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 30px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.status-card.active {
    border-left: 5px solid var(--success);
}

.status-card.inactive {
    border-left: 5px solid var(--danger);
}

.status-icon i {
    font-size: 3rem;
}

.status-card.active .status-icon i {
    color: var(--success);
}

.status-card.inactive .status-icon i {
    color: var(--danger);
}

.status-info h3 {
    margin-bottom: 10px;
}

.plans-section {
    margin: 40px 0;
}

.plans-section h2 {
    text-align: center;
    margin-bottom: 30px;
}

.plan-card {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    max-width: 400px;
    margin: 0 auto;
}

.plan-header {
    background: linear-gradient(135deg, var(--royal-blue), var(--royal-blue-dark));
    color: var(--white);
    padding: 30px;
    text-align: center;
}

.plan-header h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 5px;
}

.plan-price .currency {
    font-size: 1.5rem;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: bold;
}

.plan-price .period {
    font-size: 1rem;
    opacity: 0.8;
}

.plan-features {
    padding: 30px;
}

.plan-features ul {
    list-style: none;
}

.plan-features li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.plan-features i {
    color: var(--success);
}

.status-badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-badge.active {
    background-color: #d4edda;
    color: #155724;
}

.status-badge.expired {
    background-color: #f8d7da;
    color: #721c24;
}

.subscription-summary {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    text-align: center;
}

.subscription-summary p {
    margin-bottom: 10px;
}

.total-amount {
    font-size: 2rem;
    font-weight: bold;
    color: var(--royal-blue);
}

/* Settings */
.settings-container {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 20px 0;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.setting-item {
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 5px;
}

.setting-item label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.setting-description {
    display: block;
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: normal;
    margin-top: 5px;
}

.setting-item input:disabled,
.setting-item select:disabled {
    background-color: #e9ecef;
    cursor: not-allowed;
}

.system-info {
    background-color: var(--white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin: 20px 0;
}

.system-info h2 {
    margin-bottom: 20px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 5px;
}

.info-value {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark);
}

/* Text utilities */
.text-center {
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--white);
        padding: 20px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .page-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .status-card {
        flex-direction: column;
        text-align: center;
    }

    .settings-grid {
        grid-template-columns: 1fr;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 20px;
        width: auto;
    }
}

@media (max-width: 480px) {
    .feature-grid,
    .categories-grid {
        grid-template-columns: 1fr;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .plan-header {
        padding: 20px;
    }

    .plan-price .amount {
        font-size: 2.5rem;
    }

    .auth-box {
        padding: 20px;
    }
}

/* Print styles */
@media print {
    .navbar,
    .btn-primary,
    .btn-secondary,
    .actions {
        display: none;
    }
    
    .data-table {
        box-shadow: none;
    }
}


/* Admin specific styles */
.admin-badge {
    background-color: #ffc107;
    color: #333;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: bold;
}

.user-badge {
    background-color: #6c757d;
    color: white;
    padding: 3px 8px;
    border-radius: 3px;
    font-size: 0.8rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.stat-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
}

.stat-icon.blue {
    background-color: rgba(65, 105, 225, 0.1);
    color: var(--royal-blue);
}

.stat-icon.green {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
}

.stat-icon.yellow {
    background-color: rgba(255, 193, 7, 0.1);
    color: #ffc107;
}

.stat-icon.purple {
    background-color: rgba(111, 66, 193, 0.1);
    color: #6f42c1;
}

.stat-details {
    flex: 1;
}

.stat-value {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--dark);
    line-height: 1.2;
}

.stat-label {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Section styles */
.section {
    background-color: var(--white);
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--dark);
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--gray);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* Quick actions */
.quick-actions {
    margin: 30px 0;
}

.quick-actions h2 {
    margin-bottom: 20px;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.action-card {
    background-color: var(--white);
    padding: 30px 20px;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    color: var(--dark);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.action-card:hover {
    transform: translateY(-5px);
}

.action-card i {
    font-size: 2.5rem;
    color: var(--royal-blue);
    margin-bottom: 15px;
}

.action-card span {
    display: block;
    font-weight: 500;
}

/* Search input */
.search-input {
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    width: 300px;
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--royal-blue);
}

/* Payment page styles */
.payment-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 30px 0;
}

.instructions-card,
.payment-form-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.instructions-card h2,
.payment-form-card h2 {
    margin-bottom: 25px;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.instructions-card h2 i {
    color: var(--royal-blue);
}

.instruction-steps {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-number {
    width: 35px;
    height: 35px;
    background-color: var(--royal-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.step-content p {
    color: var(--gray);
    line-height: 1.5;
}

.payment-number {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
}

.payment-number .number {
    font-size: 1.3rem;
    font-weight: bold;
    color: var(--royal-blue);
    flex: 1;
}

.copy-btn {
    background: none;
    border: none;
    color: var(--royal-blue);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px 10px;
}

.copy-btn:hover {
    background-color: rgba(65, 105, 225, 0.1);
    border-radius: 5px;
}

.amount-display {
    background: linear-gradient(135deg, var(--royal-blue), var(--royal-blue-dark));
    color: var(--white);
    padding: 20px;
    border-radius: 5px;
    text-align: center;
    margin-bottom: 30px;
}

.amount-display .label {
    display: block;
    font-size: 1rem;
    margin-bottom: 5px;
    opacity: 0.9;
}

.amount-display .amount {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
}

.payment-form .terms {
    display: flex;
    align-items: center;
    gap: 10px;
}

.payment-form .terms input[type="checkbox"] {
    width: auto;
}

.payment-history {
    margin-top: 40px;
}

.payment-history h2 {
    margin-bottom: 20px;
}

/* Button small */
.btn-small {
    padding: 5px 15px;
    font-size: 0.9rem;
    background-color: var(--royal-blue);
    color: var(--white);
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.btn-small:hover {
    background-color: var(--royal-blue-dark);
}

/* Request summary */
.request-summary {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.request-summary p {
    margin-bottom: 10px;
}

.request-summary p:last-child {
    margin-bottom: 0;
}

/* Responsive */
@media (max-width: 768px) {
    .payment-container {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        grid-template-columns: 1fr 1fr;
    }
    
    .search-input {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .action-buttons {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .payment-number {
        flex-direction: column;
        text-align: center;
    }
}